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regulation vocabular
| Question | Answer |
|---|---|
| regulation | controls the amount and direction of responses, maintains homeostasis |
| stimulus | something that causes a change in the organims which causes a change in the organsism |
| neuron | send eletrical and chemical impulses and are transmitted only among the cell memebrane |
| impulse | a sudden involuntary urge to do something |
| effector | body parts that cause a change in the environement which creates a change in an organism |
| Receptors- | specialized structures sensitive to certain types of stimuli |
| Response | action resulting from the stimulus |
| Neurotransmitters | are brain chemicals that allow transmission of signals from one neuron to another |
| Irritability | ability of a cell to respond to its environment |
| Dendrites- | hair like structures which receive impulses first |
| Cyton (cell body)- | contains the nucleus and other organelles . it is the site of metabolic activity |
| Axon- | long thin structures that carries impulses away from cell body to an effector |
| Hormones | chemical messengers that are manufactured by the endocrine glands |
| Glands- | - organs that secrete substances in and out of the body |
| Target cells/tissues/organs- | hormones |
| Hypothalamus | releases hormones when information is received from the nervous system |
| Hyposecretion | too little hormone is secreted |
| Hypersecretion- | too much hormone is secreted |
| Feedback mechanism | -one change causes another change |
| Reflex | automatic response to a sensory stimulus |
| Cerebrum- | is the largest part of the brain and contains memory, , thought, analyzing and the senses |
| Cerebellum | means little brain and maintains balance and controls all voluntary and some involuntary activities |
| Medulla oblongata- | - lowest part of the brain and controls many involuntary activities |
Created by:
janelmartinez
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